Mechanism for shifting gears.



H. A. MYERS.

MECHANISM FOR SHIFTING GEARS.

- APPLICATION FILED SEPT. 5,1913.

1,1 14,631 Patented Oct 20,1914.

3 SHEETS-SHEET 1.

WITNESSES: o "WEI/70R 5394i 0 b I q Maul I k d 8) WW I] \gzzy-winwmvmunn I5 .7, J H p, Q ITTORNEV in a 4 H. A. MYERS.

MECHANISM FOR SHIFTING GEARS.

APPLICATION FILED SEPT. 5,1913.

1,1 14,631 Patented Oct.2O,19 4.

nrakuzr n. A. MYERS. MECHANISM FOR SHIFTING GEARS APPLICATION FILED SEPT. 5,1913.

1 1 1 4,263 1 I. Patented Oct. 20, 1914.

3 SHEETSSHEET 3. 63 H s mmna/ ildllafiitl.

nrvrrnn STATES-wit?! OFFICE.

HUBER/l A. MYERS, F TOLEDO, OHIO, ASSIGNOR 0F ONE-HALF 'IO ALBERT 0F TOLEDO, OHIO.

MECHANISM FOR, SHIFTING GEAR-S.

mechanical control and the mechanism to be controlled thereby, especially of power driven machines.

This invention has utility when incorporated in connection with the driving mechanism of motor vehicles. l

Referring to the drawings: Figure 1 1s a fragmentary plan view of a motor vehicle of the unit power plant type having an embodiment of the invention adapted thereto for y speed and direction of drive control; Fig. 2

is a plan view, on a. larger scale, of the mechanical control shown in Fig. 1; Fig. 3

is a side elevation with parts broken away,

- of the mechanism of Fig. 2, the parts being in neutral position; Fig/l is a bottom plan view of the shift bar actuating disk wlth its retaining shield; Fig. 5 is a section on the lineV-V, Fig. 3; Fig. 6 is an end elevation'of the control'mechanism, looking from the right, Fig. 3, the lower yoke portions and teeth being in section; Fig. 7 is a side" [elevation-of the mechanism as adapted to the unit power plant of Fig. 1; Fig. 8 is a side elevation of the mechanism showing the shift to high speed forward; Fig. 9 15. a view imilar to Fig. 8, but with the shift to intermediate or second speed forward; Fig.

1G is a. plan view of the actuating disk re- 7 taining shield; Fig. 11 is a plan view of the actuating disk member; Fig. 12 is a side elevation of the control mechanism in neutral position, with two se-ecting cam shafts for determining the shifts; Fig 13 is a plan view of the mechanism of Fig. 12;. Fig. 14 shows the mechanism of Fig. 12 shifted to slow speed ahea or forward; and Fig. 15 shows the mechanism of Fig. 12 shifted to reverse of: hacking position.

The motor vehicle 1 is actuated by the in-' 'ternal comonstion n 2having the clutch 3. Extcinling to cont-ml the throws of the clutch 3Iin and out of driving relation is the link 4 attached to arm 5 extending from the fulcrum 6 of, the "foot lever 7. i

The motor vehicle .is guided from the steering wheel 8 mounted on the steering Specification of Letters Patent.

' Application filed. September 5, 1913. Serial No. 788,338.

A. ATWOOD,

' post 9. The steering wheel 8 carries the indicator quadrant 10. To the different positions thereon the selector arm 11 may be shifted to rock the arm 12 connected bythe link 13 extending to the angle lever having the arms 1e, 15. Pivoted to the arm. 15 is the link 16 having the rack 17 in mesh with I the pinion 18 on the selecting cam shaft 19, which carries the selecting cam 20 having the grooves 21, 22, therein to be engaged by the rollers 23, 24;, carried by the reciprocable blocks 25. These blocks 25 are forced uward by the compression spring 26, and he (1 downward by the tension springs 27 to determine the. mean or intermediate neutral position ofthe block 25 in the guide 28 of the actuating or shifting members 29, 30,

Patented Oct. 20. 1914.

which are shown of yoke form. These me'mhers 29, 30 are respectively connected to the shift bars. proper 31, 32, extending into the unit power plant housing to effect or estao-- lish a plurality of driving relations.

' The clutch 3, when connected to the motor 2 drives the shaft 33, having thereon the pinion 34 in mesh with'the gear 35 on the counter shaft 36, carrying the gears 37, 38 respectively for intermediate and slow speeds forward, and the pinion 39 in mesh with the intermedate pinion dllfor reverse travel when the shift bar 32 throws the ear 41 on the shaft 42 in mesh therewith. .V lith this gear il thrown forward it engages the gear 38 for slow speed forward. The shift bar 31 may throw the gear 43 into mesh 7 with the gear 37 on rearward shifting to veii'ect intermediate or second speed travel torward, while opposite shorter travel shitting of this bar 81 toward the front of the vehicle will directly connect the shaft 42 to the shaft 33 for high speed driving ahead.

The clutch lever 7 carries the lug or abut. merit 44 on each side of which is disposed a compression spring 45 enacting with lugs 46 on. the actuating disk 4-7 loosely mounted on the clutch lever fulrrnm shaft 6. There is mrrzrnlingrly provided a yieldahlo connection between the clutch lever 7 and the actuating disk 47. thus permitting the clutch lever to act in its direct connection to the clutch 3 to ()\(l'('(ll1l the action of the springs 48 for disconnecting the shaft 33 from drivingaction before the actuating disk 47 operative; T he disk 47 has tooth recesses 49, 5O of diil'erent pitches. in its bottom portion to be engaged by the teeth 51,- 52, respectively of the members 29, id 'liccordihgly the yoke member 29 to'eng'age therecessflfil when .thecam groove 2], is shiftedtocoause.

with its tooth 51, thef throwing of the clutch pedal 7 will first rock the oscillatingactuah,

ing disk'47 to neutral or disconnected pos tion,, a,n 1. then,on the recoverof the clutchn lever 7' as forced by the cliltch springs 48, the disk 47 through its tooth-recess'i50-*en .gaging'the tooth 51 on the lower side of the yoke 29wil1 cause the yoke29 toinove to-a ward. the front of the vehicle and-'shift-the bar 31 into high'speed position -The rece'ss j w 50: being largerthan the tooth 51', permits;

some movement of-the diskiM-before shift-- ing begins, thus making the shift travel shorterat recess 50,' than at the narrower rcs'sAS-which shifts-the bar 3O int o slov pribrselecting, the blockwhich; is to" ef- 4 Connected: to the' pedal lever 7 is the feet selection is-placed under-spring action,

sothat in the-,rOcking of-the clutch lever -7 forward which brings'the; disk 47 toyneutral position, with the groove '21- of the earn in [position'toefiect setting" for a new speed re; lation, the

cove 22 is at neutral position to insure w thdrawal-of 'th'eyok'e I W ithdrawal and engagement may fonlyoccur at neutral position as controlled-by the fixed shield: 53' which has notches '54 at'the neutral position allowing the teeth '51-, 52, hayi'ng enlarged'or club -ends,' to engage the disk at the notches 54, while the overhangin flanges on each side of these notches 5 4- serve to retai'n theseteeth" in position to be actuated by the disk .47- when away f from neutral position.-

held in engagement therewith by the spring 57. Rigid withjthe ratchet 56 is the extension '58 engaged by the arm 59 of the cam 60; This cam 60 is of such contour to be engaged by the arm 15, that at selected neutral position only will the extension 58- allow the ratchet 56 to hold thebar 5,5. This means when neutral position is selected, a thrusting of the foot -lever 7 forward may result in said lever 7 being held forward by the ratchet against the resistance of the clutch springs 51-8. Accordingly by connecting the link 61 to the clutch lever 7 the rock shaft 62 may be oscillated to actuate the links 63 and through them the rockshafts 64' to act as an emergency stop for the machine by tightening. the brakes 6'5. A resetting of the selector to some position other than neutral will permit release of this emergency brake locking device. 1

The selection and actuation devices. in

some instances mayconveniently assume the 'Lhe npper rack rfi 'f, on one fork of the bar into engagement with the actuating disk "a? on the shaft 6, to effect throwing rearwardly" the shift bars'32 and 31..

'For opposite shifting, the lower-fork m5 ,correspond ing..to. the.,se1ecting',.rapk bar .16, is fforked 'to were a' pl'ur'alit'y' of 'caiii's,' as" the range of driving relations may demand.

the has 66 carries the rack 7 5 in mesh with v.

the pinion 76 on the shaft 77 carrying the" cam having the high speed selecting pen non-teens the slow speed selecting portion 185" 79: "As shown inFi'g. 12 these cams are'inactive, the selected, position being-neutral;

es-isalsothe showing in Fig; '1. These ca'm portions "1 8, "1'9 engage the y-ieldable' pl'uny gers 89 of the yokes" M,- -73jrespectivelyr The portio'rfTS efi'ects selection for shifting van to1-high' speed- "o'f -the yoke member 74 by;

throwing it forward, while the portion-379 makes engagement for-'the member 73, for

throwing forward. by the recoverof the clutch lever 7 f "slow sp d ahead- (Fig.14). 1 i

Th'ere'is in the-"disclosure herein' ame cha;

'nisrn simpleand certain fonconvenientop oration, especially in connect on with motor T .y'ehicles,

t' .=.1'inined by thef-selector' may'only ,engage and'be' disen" aged atthe neutralposition. The releasing thrust forward of the clutch lever 7;- alwaysfirst brings theparts to new tral position,- wheh releaseof former con-- nections is insured and the selection may v J become effective in the recover travel of the ratchet bar 55 engaged by the ratchet 56"- clutch lever'b'y bringing about the shifting desired. I the main clutch 3 before any shifting occurs, yet in the quick travel forward and back,

Thereis always disconnection of speed change may be effected from the clutch lever in a most smooth andquietmani'ier;-

In additionto the compactness for] one hand manipulation of the steering-and se lecting, there may be one leg control of the shifting and emergency braking. The added results which may be so quickly and simply attributed to standard eleme'ntsof motor vehicle control br ngto the motor vehicle to which the invention herein is adapted, ad'- vantages all drivers keenly appreciate."

What is claimed and it isdesired to secure to the lever to control the mechanism "and.

brake, said lever operable positively through the means to control the driving mechanism and apply the brake to the member.

2. A driving device, a driven member acmechanism having a plurality of driving re; a

lations therebetween, control means for the mechanism having a neutral position toward which the means is movable from drivling position of the mechanism, a 'brake for the driven member, and means for connecting the brake to the control means at the neutral position of said means for brake con trol by continued travel of the driving means beyond neutral position.

4. A driving member, a driven member,

mechanism for establishing a plurality of driving relations therebetween, said mechanism embodying a pair of reciprocable members, actuating disk means for reciprocatingv said members by positively disconnecting said reciprocable members from driving relation, and selector operable at any time for determining any actuating disk means connection to a reciprooable member.

5. A driving member, a driven member, mechanism for establishing a plurality of driving relations'therebetwcen, said mechanism embodying reeiprocable members, an actuator disk for one of said members effective to move 'said member in two directions positively to disconnecting position from differentdriving, relations a selector operable at-any time for determining any connection of said actuator, and a pedal for moving the actuator.

6. A driving member, a drivenmember, mechanism for establishing a plurality of driving; relations therebetween, said mechanism embodying a reciproeable member having an intermediate neutral position, an oscillating actuating disk for said member tov move said member in two directions from said neutral position positively, a selector operable at any time for cletmmining. any actuating disk connection, and driving means for the disk.

7; A driving member. a driven member, mechanism for establishing a plurality of driving: relations therehetween, said mechanism embodying a reciprovable member havin. an intermediate neutral position, an oscillaling. disk having engaging means for said number, and means precluding engage mentot said disk \vithsaid member at other than neutral position oi said member.

8. A driving member, a driven member. mechanism for establishing a plurality of driving relations therel'letween, said mech- T anism embodying a reciprocable member, a

selecting cam for determining two direction throws of the member, and actuating means for the member in the selected direct-ion.

9. A driving member, a driven member,

mechanism for establishing a plurality of driving relations therebctween, said mechanism embodying reciprocable members, and

a selecting; cam member for determining the reeiproeable member to be thrown.

10. A driving member, a driven member, mechanism for establishing a plurality of driving relations therebetween, said mechanism embodying; reciprocable members, a

selecting cam member for determining direction throws of the members, and actuat ing means for the selected reeiprocable member.

11. A driving member, a driven member, mechanism for establishing a plurality of driving relations therebetween, said mechanism including an actuating disk, a driving pedal for directly actuating the disk, and a selector operable at any time for-determining any connection for the disk independently ofthe position of the pedal.

12A driving member, a driven member, mechanism for establishing a plurality'of driving relations therebetween, said mechanism inciij ding an actuating disk, an actuating member therefor, and yieldably resisting connecting means between the actuating member and the disk permitting the actuating member to travel before the disk is operated.

13.13. driving member, a driven member, mechanism for establishing a plurality of driving relations between said members, a clutch for connecting the driving member to the mechanism, said mechanism including an actuating disk, a driving member for actuating the'clutch and disk, and yieldably rotatable actuator For said member. said a(".- I

tual o having teell'i of different sizes, means i engaged by said actuator teeth to be me ved dift'erent distances by engaging different teeth, and means for oscillating the actuator. 16. A driving nu-mber. .a. lriv0n member.

mechanism for establishing); a. plurality of able toward and from'neutral position, a

shift member engageable with said oscillating member at neutral position, and means precludin disengagement of said members at other than neutral position.

17. A drivingnmember, a driven member mechanism for establishing a'iplurality of driving relations therebetween, said mechanism including an actuating member 'movable toward and from neutral position, a

shift member engageable with said-actuatingmember at neutral position, and means preeluding disengagement of said members at other than neutralposition.

18. A driving member,- a driven member,- mechanism for establishing a plurality of driving-relations therebetween, said mechanism embodying .a reeiprocable member having an intermediate neutral position, an actuating member having engaging means for said reciproeable member, and guiding means preventing said actuating member and said reeiproeeble member from engagement with each other at other than neutral position of said reeiproesble member.

19. A driving member a driven member; mechanism for establishing a plurality of nec'ted to shift-the members-birdshiftdeter; J ininingmeanscontrolling thezeng'a (might of the actuating means with-.thenem ens, said 45 shift determining means operable-indepeiidently of the position of the manuellymdved i, element. In witness whereof I aifix my signature in the presence of two Witnesses i- .r HUBERT A. MYERS Witnesses: 1

, Geo. Kmn,

GLADYS JAMESON. 

